[Bug c++/33506] New: [4.2/4.3 Regression] TYPE_RAISES_EXCEPTIONS dumped with attributes

[jakub at gcc dot gnu dot org]

extern int foo (char *) __attribute__ ((warn_unused_result));
extern int bar (char *) throw () __attribute__ ((warn_unused_result));
extern int bar (char *) throw ();

fails to compile with 4.2/4.3 (instead of warn_unused_result
any other attribute that has type_required set can be used, like nonnull,
regparm, ...).  The problem is that attribs will modify the type
using build_type_attribute_variant, which, being a middle-end rather than FE
function, doesn't know about TYPE_RAISES_EXCEPTIONS.


-- 
           Summary: [4.2/4.3 Regression] TYPE_RAISES_EXCEPTIONS dumped with
                    attributes
           Product: gcc
           Version: 4.2.1
            Status: UNCONFIRMED
          Severity: major
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: jakub at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33506